National AN/FRR-24 and AN/FRR-37 Receiver - Restoration

Please let me know if you have any parts or info on this system - thanks, Nick KD4CPL
Main AN/FRR-24 page
1950's-60's Navy Radio Equipment - photos, links, specs, etc.

This project got started when I acquired a couple of modules at the Shelby hamfest in 2006 and was intrigued by their design. As usual, one thing led to another, and In February 2007 I obtained most of the modules for one FRR-24 receiver rack and in August 2007 obtained two more complete FRR-37 receiver racks. Along the way, I also accumulated a couple of AN/FRR-59 receivers, some RTTY gear, etc. This is obviously a project in progress. I am still looking for some missing FRR-24 modules, particularly an AM-452 16-32 mc RF unit, a PP-590 receiver rack power supply, two Rack 4 power supplies and three CV-127 FSK converters.

12/07 - Operating position - TT-176/UG TTY, FRR-31 rcvr, FRR-59 rcvr, CV-89A RTTY converter, FRR-49 rcvr, SB-3576/UG patch panel, FRR-24 rcvr (rack 1 only so far)	12/07 Operating position	11/07 - The FRR-24 works for the first time!
2007 -Re-assembly begins - with helper	first modules mounted	additional modules mounted	power and signal connections on rear
IT WORKS! with 3 RF units installed so far 11/06/2007	BNC cables in rear	BNC cables in rear	power and signal connections on rear
Filters & IF amp	2nd mixer & detector/AF	RF tuner unit	Rear showing connections
pull-out	tilt (2nd mixer)	under-chassis construction	components & wiring
FRR-37 photos
Rack 2 SB-282/FRR-37	Rack 2 SB-282/FRR-37	Rack 3 SB-283/FRR-37	Rack 3 SB-283/FRR-37
Rack 3 SB-280/FRR-37 Power Control Panel	Rack 3 SB-280/FRR-37 Power Control Panel	Rack 3 SB-280/FRR-37 Power Control Panel	F-207/FRR-37 note missing filters
example FRR-37 tag	example "A" series FRR-24	PP-590A/FRR-24 power supply

CLICK HERE FOR MORE FRR-37 photos